Blow dryer attachments that use the coanda effect

Abstract

The inventive subject matter is directed to blow dryer attachments that take advantage of the Coanda effect to improve performance in drying and straightening hair. Embodiments of the attachment are configured to couple with the end of a blow dryer so that air from the blow dryer passes through the attachment and passes over a curved surface having a heating element. The heating element is passively heated by hot air from the blow dryer, and the heating element is configured as a curved plate to create the Coanda effect.

What is claimed is: 
     
         1 . An attachment for a blow dryer, comprising:
 an adapter configured to couple with the blow dryer and with an attachment assembly;   the attachment assembly comprising an interior portion, an outlet from the interior portion, and a curved surface;   wherein the curved surface comprises a heating element and is configured to create Coanda effect with air leaving the outlet; and   tines coupled with the attachment assembly and positioned near the curved surface.   
     
     
         2 . The attachment of  claim 1 , wherein the heating element comprises a metal. 
     
     
         3 . The attachment of  claim 1 , wherein the attachment assembly comprises an upper housing and a lower housing, wherein the tines are configured to couple with the upper housing. 
     
     
         4 . The attachment of  claim 3 , wherein the attachment assembly further comprises an upper bracket and a lower bracket, wherein the upper bracket and the lower bracket form the interior portion and the outlet. 
     
     
         5 . The attachment of  claim 1 , wherein the adapter comprises a magnet configured to facilitate coupling with the blow dryer. 
     
     
         6 . An attachment for a blow dryer, comprising:
 an upper housing and a lower housing that couple together;   an upper bracket and a lower bracket configured to couple together and configured to at least partially fit within the upper housing and the lower housing;   wherein the upper bracket and the lower bracket form an interior portion having an inlet and an outlet;   wherein the inlet receives air from the blow dryer and wherein air from the blow dryer exits the interior portion at the outlet;   wherein the lower bracket comprises a curved surface that air that has exited the outlet passes over;   wherein the lower bracket comprises a heating element that is curved according to the curved surface and coupled with the curved surface;   a set of tines that couples with the upper housing; and   wherein the curved surface is configured to create the Coanda effect with air leaving the outlet.   
     
     
         7 . The attachment of  claim 6 , wherein the heating element comprises a metal. 
     
     
         8 . The attachment of  claim 6 , wherein the upper housing comprises two upper housing tines that are thicker than the tines, and wherein the tines are configured to fit between the upper housing tines. 
     
     
         9 . The attachment of  claim 6 , wherein the adapter comprises a magnet configured to facilitate coupling with the blow dryer. 
     
     
         10 . An attachment for a blow dryer, comprising:
 an adapter configured to couple with the blow dryer and with an attachment assembly;   the attachment assembly comprising an interior portion, an outlet from the interior portion, and a curved surface; and   wherein the curved surface comprises a heating element and is configured to create Coanda effect with air leaving the outlet.   
     
     
         11 . The attachment of  claim 10 , wherein the tines couple with the attachment assembly and are positioned near the curved surface. 
     
     
         12 . The attachment of  claim 10 , wherein the adapter comprises a magnet configured to facilitate coupling with the blow dryer. 
     
     
         13 . The attachment of  claim 10 , wherein the heating element comprises a metal.